22555022 has 32 divisors (see below), whose sum is σ = 41404608. Its totient is φ = 8994816.

The previous prime is 22555009. The next prime is 22555031. The reversal of 22555022 is 22055522.

It is a happy number.

It is a super-4 number, since 4×22555022⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22598 + ... + 23574.

It is an arithmetic number, because the mean of its divisors is an integer number (1293894).

Almost surely, 2^22555022 is an apocalyptic number.

22555022 is a deficient number, since it is larger than the sum of its proper divisors (18849586).

22555022 is a wasteful number, since it uses less digits than its factorization.

22555022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 22555022 is about 4749.2127768716. The cubic root of 22555022 is about 282.5407443778.

Subtracting from 22555022 its reverse (22055522), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 22555022 in words is "twenty-two million, five hundred fifty-five thousand, twenty-two".